Nah, I think you are making up the past. I saw an article early on where the US (probably the CIA) made a comment that their monitoring of the Wuhan facility saw that there were much less cars parked there and none or little mobile phone activity there. It's sobering when they can comment on mobile phone activity around an area in a different country, but I guess that's what these agencies do.
But I believed it to be plausible early on and I would never call myself a CT-nutter. You maybe, but not me and if we were to agree on something I would have to default to us both being not nutters. Against my better judgement

Where does the "anti-vax" of being a nutter come into believing it could have been an accidentaly release from a lab? A lab leak does not involve vaccines.
But, CT-nutters never seem to narrow down to one or few ideas. They seem to sprout all of them and are never pinned down on any. Which is where they get the 'nutter' tag from. I mean, I could claim pretty much anything and if I had no need to provide any logic to support it, well I would be "correct" on just about anything wouldn't I? If you suggest heaps of wild ideas then the chances of one being true becomes higher and higher. The only thing a CT-nutter would never suggest is the official story and they only don't mention those because who can be special if the mainstream media advertises it?